Flexible graphite sheet, material or layer
CA 1136931 A · Owner: Sigri Elektrographit Gesellschaft Mit Beschrankter Haftung · Inventors: Hirschvogel, Alfred; Freundlinger, Ernst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Flexible graphite layer material containing at least one metal molybdate with a solubility in water of 10-2 to 10-4 g/100ml to inhibit corrosion. The corrosion inhibitor may be incorporated by first immersing the graphite layer material in a solution of an alkali metal molybdate drying, and then immersing in a solution of very soluble metal salt in which the metal when combined with molybdate to form metal molybdate has the defined solubility. The graphite layer material is then dried and contains the desired molybdate corrosion inhibitor.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted December 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.